About Peptidology
Young (domain Nov 2024) US research-peptide vendor with a genuinely strong, named independent lab program (Vanguard Laboratories, ISO 17025) that is corroborated by 16 Finnrick tests at ~99.8% median purity. Catalog and COAs sit behind account login.
Score overview
How we score →Weighted composite across 8 criteria; the letter grade follows our published bands and integrity gate.
Key facts
Pros
- Real named independent third-party lab (Vanguard, ISO/IEC 17025) with per-lot COAs, independently validated by Finnrick (median 99.8% purity, 100% correct identity)
- Fast US same-day shipping, all three payment rails (card 3DS + bank + crypto), and a published 60-day return / damaged-item replacement policy; no GLP-1 in catalog so outside the FDA enforcement wave
Cons
- Very young domain (created 2024-11-26), thin/young reputation (~67 Trustpilot reviews), and catalog + COAs are hidden behind account login (COAs not one-click public)
- Minor net-content underdosing on some independent samples (GHK-Cu -12.5%, Ipamorelin -5.4%), US-only shipping, and no legal entity/address on the public site
Is Peptidology legit? Common questions
Is Peptidology a legit peptide vendor?
Peptidology grades C+ (78.8/100), a mixed result. Weigh the pros, cons and the score overview before ordering.
Does Peptidology provide third-party lab testing?
Yes, Peptidology publishes independent third-party Certificates of Analysis via Vanguard Laboratories, which is the single most heavily weighted factor in our grade (Lab & Purity, 43%).
Where does Peptidology ship to and how fast?
Peptidology reports shipping to United States, typically in around 1-3 days (US only).
What payment methods does Peptidology accept?
Peptidology accepts card, bank transfer, crypto.
When was this Peptidology review last updated?
This grade was last reviewed on 2026-07-04 under methodology v1.0.
Solid B: named ISO-17025 independent lab, Finnrick-verified high purity, all-rail payment, and a published replacement policy outweigh the sub-1-year domain, thin review volume, and login-gated catalog/COAs. Not personally verified because COAs are login-gated.
Our labelled opinion, based on the dated evidence in the score overview. See how we score.
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Grades reflect vendor reliability only, not the safety, efficacy, or legality of any product. Nothing here is medical advice.